/**
  ******************************************************************************
  * @file      startup_stm32g473xx.s
  * @author    MCD Application Team
  * @brief     STM32G473xx devices vector table GCC toolchain.
  *            This module performs:
  *                - Set the initial SP
  *                - Set the initial PC == Reset_Handler,
  *                - Set the vector table entries with the exceptions ISR address,
  *                - Configure the clock system
  *                - Branches to main in the C library (which eventually
  *                  calls main()).
  *            After Reset the Cortex-M4 processor is in Thread mode,
  *            priority is Privileged, and the Stack is set to Main.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

  .syntax unified
    .cpu cortex-m4
    .fpu softvfp
    .thumb

.global g_pfnVectors
.global Default_Handler

/* start address for the initialization values of the .data section.
defined in linker script */
.word   _sidata
/* start address for the .data section. defined in linker script */
.word   _sdata
/* end address for the .data section. defined in linker script */
.word   _edata
/* start address for the .bss section. defined in linker script */
.word   _sbss
/* end address for the .bss section. defined in linker script */
.word   _ebss

.equ  BootRAM,        0xF1E0F85F
/**
 * @brief  This is the code that gets called when the processor first
 *          starts execution following a reset event. Only the absolutely
 *          necessary set is performed, after which the application
 *          supplied main() routine is called.
 * @param  None
 * @retval : None
*/

    .section    .text.Reset_Handler
    .weak   Reset_Handler
    .type   Reset_Handler, %function
Reset_Handler:
  ldr   r0, =_estack
  mov   sp, r0          /* set stack pointer */

/* Copy the data segment initializers from flash to SRAM */
  ldr r0, =_sdata
  ldr r1, =_edata
  ldr r2, =_sidata
  movs r3, #0
  b LoopCopyDataInit

CopyDataInit:
  ldr r4, [r2, r3]
  str r4, [r0, r3]
  adds r3, r3, #4

LoopCopyDataInit:
  adds r4, r0, r3
  cmp r4, r1
  bcc CopyDataInit

/* Zero fill the bss segment. */
  ldr r2, =_sbss
  ldr r4, =_ebss
  movs r3, #0
  b LoopFillZerobss

FillZerobss:
  str  r3, [r2]
  adds r2, r2, #4

LoopFillZerobss:
  cmp r2, r4
  bcc FillZerobss

/* Call the clock system initialization function.*/
    bl  SystemInit
/* Call static constructors */
    bl __libc_init_array
/* Call the application's entry point.*/
    bl  main

LoopForever:
    b LoopForever

.size   Reset_Handler, .-Reset_Handler

/**
 * @brief  This is the code that gets called when the processor receives an
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 *
 * @param  None
 * @retval : None
*/
    .section    .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
    b   Infinite_Loop
    .size   Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex-M4.  Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
*
******************************************************************************/
    .section    .isr_vector,"a",%progbits
    .type   g_pfnVectors, %object
    .size   g_pfnVectors, .-g_pfnVectors


g_pfnVectors:
    .word   _estack
    .word   Reset_Handler
    .word   NMI_Handler
    .word   HardFault_Handler
    .word   MemManage_Handler
    .word   BusFault_Handler
    .word   UsageFault_Handler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   SVC_Handler
    .word   DebugMon_Handler
    .word   0
    .word   PendSV_Handler
    .word   SysTick_Handler
    .word   WWDG_IRQHandler
    .word   PVD_PVM_IRQHandler
    .word   RTC_TAMP_LSECSS_IRQHandler
    .word   RTC_WKUP_IRQHandler
    .word   FLASH_IRQHandler
    .word   RCC_IRQHandler
    .word   EXTI0_IRQHandler
    .word   EXTI1_IRQHandler
    .word   EXTI2_IRQHandler
    .word   EXTI3_IRQHandler
    .word   EXTI4_IRQHandler
    .word   DMA1_Channel1_IRQHandler
    .word   DMA1_Channel2_IRQHandler
    .word   DMA1_Channel3_IRQHandler
    .word   DMA1_Channel4_IRQHandler
    .word   DMA1_Channel5_IRQHandler
    .word   DMA1_Channel6_IRQHandler
    .word   DMA1_Channel7_IRQHandler
    .word   ADC1_2_IRQHandler
    .word   USB_HP_IRQHandler
    .word   USB_LP_IRQHandler
    .word   FDCAN1_IT0_IRQHandler
    .word   FDCAN1_IT1_IRQHandler
    .word   EXTI9_5_IRQHandler
    .word   TIM1_BRK_TIM15_IRQHandler
    .word   TIM1_UP_TIM16_IRQHandler
    .word   TIM1_TRG_COM_TIM17_IRQHandler
    .word   TIM1_CC_IRQHandler
    .word   TIM2_IRQHandler
    .word   TIM3_IRQHandler
    .word   TIM4_IRQHandler
    .word   I2C1_EV_IRQHandler
    .word   I2C1_ER_IRQHandler
    .word   I2C2_EV_IRQHandler
    .word   I2C2_ER_IRQHandler
    .word   SPI1_IRQHandler
    .word   SPI2_IRQHandler
    .word   USART1_IRQHandler
    .word   USART2_IRQHandler
    .word   USART3_IRQHandler
    .word   EXTI15_10_IRQHandler
    .word   RTC_Alarm_IRQHandler
    .word   USBWakeUp_IRQHandler
    .word   TIM8_BRK_IRQHandler
    .word   TIM8_UP_IRQHandler
    .word   TIM8_TRG_COM_IRQHandler
    .word   TIM8_CC_IRQHandler
    .word   ADC3_IRQHandler
    .word   FMC_IRQHandler
    .word   LPTIM1_IRQHandler
    .word   TIM5_IRQHandler
    .word   SPI3_IRQHandler
    .word   UART4_IRQHandler
    .word   UART5_IRQHandler
    .word   TIM6_DAC_IRQHandler
    .word   TIM7_DAC_IRQHandler
    .word   DMA2_Channel1_IRQHandler
    .word   DMA2_Channel2_IRQHandler
    .word   DMA2_Channel3_IRQHandler
    .word   DMA2_Channel4_IRQHandler
    .word   DMA2_Channel5_IRQHandler
    .word   ADC4_IRQHandler
    .word   ADC5_IRQHandler
    .word   UCPD1_IRQHandler
    .word   COMP1_2_3_IRQHandler
    .word   COMP4_5_6_IRQHandler
    .word   COMP7_IRQHandler
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   0
    .word   CRS_IRQHandler
    .word   SAI1_IRQHandler
    .word   TIM20_BRK_IRQHandler
    .word   TIM20_UP_IRQHandler
    .word   TIM20_TRG_COM_IRQHandler
    .word   TIM20_CC_IRQHandler
    .word   FPU_IRQHandler
    .word   I2C4_EV_IRQHandler
    .word   I2C4_ER_IRQHandler
    .word   SPI4_IRQHandler
    .word   0
    .word   FDCAN2_IT0_IRQHandler
    .word   FDCAN2_IT1_IRQHandler
    .word   FDCAN3_IT0_IRQHandler
    .word   FDCAN3_IT1_IRQHandler
    .word   RNG_IRQHandler
    .word   LPUART1_IRQHandler
    .word   I2C3_EV_IRQHandler
    .word   I2C3_ER_IRQHandler
    .word   DMAMUX_OVR_IRQHandler
    .word   QUADSPI_IRQHandler
    .word   DMA1_Channel8_IRQHandler
    .word   DMA2_Channel6_IRQHandler
    .word   DMA2_Channel7_IRQHandler
    .word   DMA2_Channel8_IRQHandler
    .word   CORDIC_IRQHandler
    .word   FMAC_IRQHandler

/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler.
* As they are weak aliases, any function with the same name will override
* this definition.
*
*******************************************************************************/

    .weak   NMI_Handler
    .thumb_set NMI_Handler,Default_Handler

    .weak   HardFault_Handler
    .thumb_set HardFault_Handler,Default_Handler

    .weak   MemManage_Handler
    .thumb_set MemManage_Handler,Default_Handler

    .weak   BusFault_Handler
    .thumb_set BusFault_Handler,Default_Handler

    .weak   UsageFault_Handler
    .thumb_set UsageFault_Handler,Default_Handler

    .weak   SVC_Handler
    .thumb_set SVC_Handler,Default_Handler

    .weak   DebugMon_Handler
    .thumb_set DebugMon_Handler,Default_Handler

    .weak   PendSV_Handler
    .thumb_set PendSV_Handler,Default_Handler

    .weak   SysTick_Handler
    .thumb_set SysTick_Handler,Default_Handler

    .weak   WWDG_IRQHandler
    .thumb_set WWDG_IRQHandler,Default_Handler

    .weak   PVD_PVM_IRQHandler
    .thumb_set PVD_PVM_IRQHandler,Default_Handler

    .weak   RTC_TAMP_LSECSS_IRQHandler
    .thumb_set RTC_TAMP_LSECSS_IRQHandler,Default_Handler

    .weak   RTC_WKUP_IRQHandler
    .thumb_set RTC_WKUP_IRQHandler,Default_Handler

    .weak   FLASH_IRQHandler
    .thumb_set FLASH_IRQHandler,Default_Handler

    .weak   RCC_IRQHandler
    .thumb_set RCC_IRQHandler,Default_Handler

    .weak   EXTI0_IRQHandler
    .thumb_set EXTI0_IRQHandler,Default_Handler

    .weak   EXTI1_IRQHandler
    .thumb_set EXTI1_IRQHandler,Default_Handler

    .weak   EXTI2_IRQHandler
    .thumb_set EXTI2_IRQHandler,Default_Handler

    .weak   EXTI3_IRQHandler
    .thumb_set EXTI3_IRQHandler,Default_Handler

    .weak   EXTI4_IRQHandler
    .thumb_set EXTI4_IRQHandler,Default_Handler

    .weak   DMA1_Channel1_IRQHandler
    .thumb_set DMA1_Channel1_IRQHandler,Default_Handler

    .weak   DMA1_Channel2_IRQHandler
    .thumb_set DMA1_Channel2_IRQHandler,Default_Handler

    .weak   DMA1_Channel3_IRQHandler
    .thumb_set DMA1_Channel3_IRQHandler,Default_Handler

    .weak   DMA1_Channel4_IRQHandler
    .thumb_set DMA1_Channel4_IRQHandler,Default_Handler

    .weak   DMA1_Channel5_IRQHandler
    .thumb_set DMA1_Channel5_IRQHandler,Default_Handler

    .weak   DMA1_Channel6_IRQHandler
    .thumb_set DMA1_Channel6_IRQHandler,Default_Handler

    .weak   DMA1_Channel7_IRQHandler
    .thumb_set DMA1_Channel7_IRQHandler,Default_Handler

    .weak   ADC1_2_IRQHandler
    .thumb_set ADC1_2_IRQHandler,Default_Handler

    .weak   USB_HP_IRQHandler
    .thumb_set USB_HP_IRQHandler,Default_Handler

    .weak   USB_LP_IRQHandler
    .thumb_set USB_LP_IRQHandler,Default_Handler

    .weak   FDCAN1_IT0_IRQHandler
    .thumb_set FDCAN1_IT0_IRQHandler,Default_Handler

    .weak   FDCAN1_IT1_IRQHandler
    .thumb_set FDCAN1_IT1_IRQHandler,Default_Handler

    .weak   EXTI9_5_IRQHandler
    .thumb_set EXTI9_5_IRQHandler,Default_Handler

    .weak   TIM1_BRK_TIM15_IRQHandler
    .thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler

    .weak   TIM1_UP_TIM16_IRQHandler
    .thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler

    .weak   TIM1_TRG_COM_TIM17_IRQHandler
    .thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler

    .weak   TIM1_CC_IRQHandler
    .thumb_set TIM1_CC_IRQHandler,Default_Handler

    .weak   TIM2_IRQHandler
    .thumb_set TIM2_IRQHandler,Default_Handler

    .weak   TIM3_IRQHandler
    .thumb_set TIM3_IRQHandler,Default_Handler

    .weak   TIM4_IRQHandler
    .thumb_set TIM4_IRQHandler,Default_Handler

    .weak   I2C1_EV_IRQHandler
    .thumb_set I2C1_EV_IRQHandler,Default_Handler

    .weak   I2C1_ER_IRQHandler
    .thumb_set I2C1_ER_IRQHandler,Default_Handler

    .weak   I2C2_EV_IRQHandler
    .thumb_set I2C2_EV_IRQHandler,Default_Handler

    .weak   I2C2_ER_IRQHandler
    .thumb_set I2C2_ER_IRQHandler,Default_Handler

    .weak   SPI1_IRQHandler
    .thumb_set SPI1_IRQHandler,Default_Handler

    .weak   SPI2_IRQHandler
    .thumb_set SPI2_IRQHandler,Default_Handler

    .weak   USART1_IRQHandler
    .thumb_set USART1_IRQHandler,Default_Handler

    .weak   USART2_IRQHandler
    .thumb_set USART2_IRQHandler,Default_Handler

    .weak   USART3_IRQHandler
    .thumb_set USART3_IRQHandler,Default_Handler

    .weak   EXTI15_10_IRQHandler
    .thumb_set EXTI15_10_IRQHandler,Default_Handler

    .weak   RTC_Alarm_IRQHandler
    .thumb_set RTC_Alarm_IRQHandler,Default_Handler

    .weak   USBWakeUp_IRQHandler
    .thumb_set USBWakeUp_IRQHandler,Default_Handler

    .weak   TIM8_BRK_IRQHandler
    .thumb_set TIM8_BRK_IRQHandler,Default_Handler

    .weak   TIM8_UP_IRQHandler
    .thumb_set TIM8_UP_IRQHandler,Default_Handler

    .weak   TIM8_TRG_COM_IRQHandler
    .thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler

    .weak   TIM8_CC_IRQHandler
    .thumb_set TIM8_CC_IRQHandler,Default_Handler

    .weak   ADC3_IRQHandler
    .thumb_set ADC3_IRQHandler,Default_Handler

    .weak   FMC_IRQHandler
    .thumb_set FMC_IRQHandler,Default_Handler

    .weak   LPTIM1_IRQHandler
    .thumb_set LPTIM1_IRQHandler,Default_Handler

    .weak   TIM5_IRQHandler
    .thumb_set TIM5_IRQHandler,Default_Handler

    .weak   SPI3_IRQHandler
    .thumb_set SPI3_IRQHandler,Default_Handler

    .weak   UART4_IRQHandler
    .thumb_set UART4_IRQHandler,Default_Handler

    .weak   UART5_IRQHandler
    .thumb_set UART5_IRQHandler,Default_Handler

    .weak   TIM6_DAC_IRQHandler
    .thumb_set TIM6_DAC_IRQHandler,Default_Handler

    .weak   TIM7_DAC_IRQHandler
    .thumb_set TIM7_DAC_IRQHandler,Default_Handler

    .weak   DMA2_Channel1_IRQHandler
    .thumb_set DMA2_Channel1_IRQHandler,Default_Handler

    .weak   DMA2_Channel2_IRQHandler
    .thumb_set DMA2_Channel2_IRQHandler,Default_Handler

    .weak   DMA2_Channel3_IRQHandler
    .thumb_set DMA2_Channel3_IRQHandler,Default_Handler

    .weak   DMA2_Channel4_IRQHandler
    .thumb_set DMA2_Channel4_IRQHandler,Default_Handler

    .weak   DMA2_Channel5_IRQHandler
    .thumb_set DMA2_Channel5_IRQHandler,Default_Handler

    .weak   ADC4_IRQHandler
    .thumb_set ADC4_IRQHandler,Default_Handler

    .weak   ADC5_IRQHandler
    .thumb_set ADC5_IRQHandler,Default_Handler

    .weak   UCPD1_IRQHandler
    .thumb_set UCPD1_IRQHandler,Default_Handler

    .weak   COMP1_2_3_IRQHandler
    .thumb_set COMP1_2_3_IRQHandler,Default_Handler

    .weak   COMP4_5_6_IRQHandler
    .thumb_set COMP4_5_6_IRQHandler,Default_Handler

    .weak   COMP7_IRQHandler
    .thumb_set COMP7_IRQHandler,Default_Handler

    .weak   CRS_IRQHandler
    .thumb_set CRS_IRQHandler,Default_Handler

    .weak   SAI1_IRQHandler
    .thumb_set SAI1_IRQHandler,Default_Handler

    .weak   TIM20_BRK_IRQHandler
    .thumb_set TIM20_BRK_IRQHandler,Default_Handler

    .weak   TIM20_UP_IRQHandler
    .thumb_set TIM20_UP_IRQHandler,Default_Handler

    .weak   TIM20_TRG_COM_IRQHandler
    .thumb_set TIM20_TRG_COM_IRQHandler,Default_Handler

    .weak   TIM20_CC_IRQHandler
    .thumb_set TIM20_CC_IRQHandler,Default_Handler

    .weak   FPU_IRQHandler
    .thumb_set FPU_IRQHandler,Default_Handler

    .weak   I2C4_EV_IRQHandler
    .thumb_set I2C4_EV_IRQHandler,Default_Handler

    .weak   I2C4_ER_IRQHandler
    .thumb_set I2C4_ER_IRQHandler,Default_Handler

    .weak   SPI4_IRQHandler
    .thumb_set SPI4_IRQHandler,Default_Handler

    .weak   FDCAN2_IT0_IRQHandler
    .thumb_set FDCAN2_IT0_IRQHandler,Default_Handler

    .weak   FDCAN2_IT1_IRQHandler
    .thumb_set FDCAN2_IT1_IRQHandler,Default_Handler

    .weak   FDCAN3_IT0_IRQHandler
    .thumb_set FDCAN3_IT0_IRQHandler,Default_Handler

    .weak   FDCAN3_IT1_IRQHandler
    .thumb_set FDCAN3_IT1_IRQHandler,Default_Handler

    .weak   RNG_IRQHandler
    .thumb_set RNG_IRQHandler,Default_Handler

    .weak   LPUART1_IRQHandler
    .thumb_set LPUART1_IRQHandler,Default_Handler

    .weak   I2C3_EV_IRQHandler
    .thumb_set I2C3_EV_IRQHandler,Default_Handler

    .weak   I2C3_ER_IRQHandler
    .thumb_set I2C3_ER_IRQHandler,Default_Handler

    .weak   DMAMUX_OVR_IRQHandler
    .thumb_set DMAMUX_OVR_IRQHandler,Default_Handler

    .weak   QUADSPI_IRQHandler
    .thumb_set QUADSPI_IRQHandler,Default_Handler

    .weak   DMA1_Channel8_IRQHandler
    .thumb_set DMA1_Channel8_IRQHandler,Default_Handler

    .weak   DMA2_Channel6_IRQHandler
    .thumb_set DMA2_Channel6_IRQHandler,Default_Handler

    .weak   DMA2_Channel7_IRQHandler
    .thumb_set DMA2_Channel7_IRQHandler,Default_Handler

    .weak   DMA2_Channel8_IRQHandler
    .thumb_set DMA2_Channel8_IRQHandler,Default_Handler

    .weak   CORDIC_IRQHandler
    .thumb_set CORDIC_IRQHandler,Default_Handler

    .weak   FMAC_IRQHandler
    .thumb_set FMAC_IRQHandler,Default_Handler

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
